import {z} from 'zod'

export type GetApiAgentsNamespaceSlugAgentNameResolveEnvArgs = {namespace_slug: string, agent_name: string, branch: string};

export type GetApiAgentsNamespaceSlugAgentNameResolveEnvOptions = {baseUrl: string, fetch?: typeof fetch | undefined};

export const envResponse = z.object({agent_id: z.string(), branch_rules: z.array(z.string()), created_at: z.string().nullable().optional(), id: z.string(), is_prod: z.boolean(), name: z.string(), updated_at: z.string().nullable().optional()});

export const resolveEnvResponse = z.object({branch: z.string(), environment: envResponse});

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * Resolve Environment for Branch
 * 
 * GET /agents/{namespace_slug}/{agent_name}/resolve-env
 */
export const getApiAgentsNamespaceSlugAgentNameResolveEnv = async (args: GetApiAgentsNamespaceSlugAgentNameResolveEnvArgs, options: GetApiAgentsNamespaceSlugAgentNameResolveEnvOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('accept', "application/json")

if (args.branch != null) query.append("branch", String(args.branch))

const url = `${baseUrl.replace(/\/+$/, '')}/agents/${encodeURIComponent(String(args.namespace_slug))}/${encodeURIComponent(String(args.agent_name))}/resolve-env${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(resolveEnvResponse, await res.json())
};